#1F1A84#1F1A84

#1F1A84 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.7% C 0.167 H 273.4°. Best body text is #FFFFFF at 13.64:1 contrast (WCAG AA passes).

Color values

HEX	#1F1A84
RGB	rgb(31, 26, 132)
HSL	hsl(243, 67%, 31%)
HSV	hsv(243, 80%, 52%)
CMYK	cmyk(76.5%, 80.3%, 0%, 48.2%)
CIE-LAB	lab(18.78, 38.65, -57.53)
CIE-LCH	lch(18.78, 69.30, 303.89°)
OKLab	oklab(31.66% 0.0099 -0.1664)
OKLCH	oklch(31.66% 0.167 273.4)
XYZ	xyz(5.0979, 2.6955, 22.0769)
Luminance	0.0270 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1A84 #7F841A

analogous

#1A4A84 #1F1A84 #541A84

triadic

#1F1A84 #841F1A #1A841F

tetradic

#1F1A84 #841A4A #7F841A #1A8454

square

#1F1A84 #841A4A #7F841A #1A8454

split-complementary

#1F1A84 #84541A #4A841A

monochromatic

#07061E #131051 #1F1A84 #2B24B7 #463FD9

Accessibility & contrast

On white

13.64

#1F1A84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#1F1A84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1A84

13.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1A84	#FFFFFF	#000000	##FFFFFF
##1F1A84	1.00	13.64	1.54	13.64
#FFFFFF	13.64	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003387

Deuteranopia (green-blind)

#002982

Tritanopia (blue-blind)

#003A4F

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1f1a84;
/* rgb */ color: rgb(31, 26, 132);
/* oklch */ color: oklch(31.7% 0.167 273.4);

Tailwind

colors: {
  custom: {
    50: '#6d59a9',
    500: '#1f1a84',
    950: '#000000',
  },
}

SCSS

$custom: #1f1a84;
$custom-light: #6d59a9;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1a84",
  "rgb": {
    "r": 31,
    "g": 26,
    "b": 132
  },
  "hsl": {
    "h": 242.83,
    "s": 67.089,
    "l": 30.98
  },
  "oklch": {
    "l": 0.31663,
    "c": 0.16674,
    "h": 273.4
  },
  "luminance": 0.02696
}

Semantic roles & 50–950 ramp

primary

#1F1A84

secondary

#B2B842

accent

#EA3EE2

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1F1A84

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →